<div class="river-panel">
  <div class="title">
    <span></span>
    <span>宁夏水资源概况</span>
  </div>
  <div class="charts" echarts [options]="pieOpt1" [merge]="pieOptChange1" style="height: 210px;"></div>
  <div class="title">
    <span></span>
    <span>黄河干支流引耗水情况</span>
  </div>
  <div class="charts" echarts [options]="pieOpt2" [merge]="pieOptChange2" style="height: 210px;"></div>
  <div class="title">
    <span></span>
    <span>宁夏用水结构概况</span>
  </div>
  <div class="charts" echarts [options]="pieOpt3" [merge]="pieOptChange3" style="height: 210px;"></div>
</div>
